Means for clamping and stretching warp-threads.



H. D. GOLMAN. I MEANS FOR GLAMPING AND STRETGHING WARP THREADS.

APPLIOATIONIILED OCT. 4, 1907.

Paiented July 12,1910.

g gg zkz I ZBHEETs-SHEET l.

orzzeg W mm ll H gm Q 0 i l l l l l l l l lUHUUHHHHHHWWlU llll in 2sums-sum z.

. [zzwzzzar Patented July 12,1910.

7 H. D. GOLMAN.

MEANS FOR GLAMPING AND STRETGHING WARP THREADS.

APPLICATION I'IKLBD 001'. 4, 1907.

nownnn n. coLmAn, or nocnroan, rumors, .sssrenoa TO BAR-BER-COLMANcomrm, or nocnroan, rumors, A CORPORATION or rumors.

isms son onhrarme an]: srnn'rcn ne wsar-rnnnans.

eeasai.

To all whom it concern." Be it known that I, Howsnn D-.COLMAN, a citizenof the-United States, residing at Rockford, in the count of Winnebagoand State of Illinois, haveinvented certain new and useful Improvementsin Means for Clamping and Stretching Warp-Threads and the Like, of'whichthei'ollowing is a specification.

y I willdescmbe the invention as applied to the warp-supporting frame ofa textile machine, such as the warp-tying machine disclosed inmy BritishPatent No. 10,484, of 1905, although it will be understood that theinvention is not'limited to this specific use.

In' the accompanying drawings, Figure 1 1s a fragmental under side viewof a warp carriage embodying the features of my invention. Fig. 2 is asectional view taken on the plane ofdotted line 2 2 of Fig. 1. Fig.

3 is an end elevation of the carriage.- Fig. 4 is a fragmental underside-view of the carriage with portions thereof in section. Fig. 5 is aview similar to Fig. 2, but showing the clamping and stretching means inthe inoperative position. Fig. 5 is taken on v dotted line 5 5 of Fig.3.

The framework'of the'warp carriage to which my invention is herein shownas applied, comprises the yokes 1, the longitudinal rods 2, and thechannel bars 3 and 4, said channel bars extendinglon itudinally of thecarriage at opposite sides t .ereof. The carriage is supported in thewarp: yin

machineupon rollers 5.' The channel ar 3 forms the framework of thewarp-clamp 6. Said channel'bar has a longitudinal partition or wall. 7therein, upon the upper side of which wall is a longitudinal rib 8. A.

clamp bar 9 mounted in the channel bar 3 is provided with a similar rib10. The warp 1 threads-are inserted between the partition 7 and theclamp bar9"by means of an insertion barll, the op osite sides of whichare covered with a suitable yielding material 12, such as rubber. Theclamp: bar 9 is of a hand lever 16 pivoted on the channel bar 3 at 17The lever 16 is connected with Specification of Letters Patent. PatentedJuly 12, 191%. Application fileglQciber 4, 1907. Serial No. 395,88%.

the operating bar 13 through the medium of a toggle link 18; One end ofthe toggle link 18 is connected with a block 19 ad ustably attached tothe operating bar 13 by means comprising, in this instance, screws 20extending through said operating bar and through elongated openings 21in said block.

To insure a firm and rigid connection between the block 19 and theoperating bar 13, the contacting surfaces of said parts may be ,serratedas indicated at a? in Fig. 1. Springs (nbt here shown) are provided formoving the clamp bar 9 into the inoperative position.

In Fig. 5 the clamp bar 9 is shown in its elevated and inoperativeposition. When the hand lever 16 is pivotally moved into the positionshown in Fig. 2 the operating bar 13 is moved toward the left, forcingthe clamp bar 9 downward into engagement with theinsertion bar 11 andthe warp threads bent over said bar. The toggle link 18 is arranged tothrow slightly beyond a straight line joining the pivot 17 of the handlever and the pivotal connection between said link and the block 19, inorder to lock the clam in the closed position. i

The warp clamp 22 at the opposite side of the warp-carriage may be ofthe same construction as that just described.

The means for placing tension upon the warp threads after they have beenclamped in the clamps 6 and 22 is located, in thisiinstance, adj a'eentto the clamp 6. In the construction herein shown I provide a bar 23mounted in the channel bar El between the partition 7 and the lower wallof said channel bar. The means herein shown for pressing the bar 23against the sheet of threads extending between the clamps 6 and 22, toplace tension thereon, comprises a bar 24 slidably mounted in thechannel bar 3 and having inclined teeth 25 adapted to engage similarteeth 26 on the bar 23; The

ar 24 is slid by means of a hand lever 27 connected to said'bar by meansof a'toggle link 28, the latter bein connected at one end to a blmk 29adyustabdy attached to the bar 24;. The adjustable connection betweenthe block 29 and the bar as is similar to that between the parts 19 and13. The outer edges or corners of the partition 7, the bar 28 and thelower wall of the channel bar 3 may be rounded, as shown in Fig. 3, toprevent cutting of the threads when tension is BEST AVAILABLE COPYplaced upon them. Adjacent to the warp clamp 22 is located means fordeflecting the threads from a straight line between the clamp 22 and thetensioning means. Said deflecting means com rises, 1n this instance, aserrated metallic ri bon 30 longitudinally slidable in a bar 31 fixed inthe carriage frame. One end of the ribbon 30 is connected to a crank arm32 (Fig. 1) upon one end of a rock shaft 33, a hand lever 34 (klsi 3)being fixed to the other end of said s a t.

In use, the warp threads are clamped in the clamps 6 and 22 by placingsaid threads in said clamps and moving the operating lever 16 of eachclamp into the position shown in Figs. 1 and 2. Tension is then placedupon the threads by moving the hand lever 27 into the position shown inFig. 2, the bar 23 being thereby pressed against the threads. Thedeflecting ribbon 30 is then moved longitudinally ,to the left (Fig. 1)to defiect the threads slightly from a straight line between theclamp'22 and the lower slde of the channel bar 3. o

It will be apparent to those skilled in the art that various mechanicalembodiments of the invention arepossible, and I therefore do not wish tobe limited to the arrangement and construction herein shown.

I claim as my invention:

1. The combination, with two stationary clamps adapted to hold threadsagainst movement, of means for placing tension upon a sheet of threadsheld by said clamps.

2. The combination, with two stationary thread clamps ada ted to holdthreads- I against movement, 0 means located adjacent to one of saidthread clamps for placing tension upon a sheet of threads 'held by saidclamps.

3. The combination, with two stationary thread clamps, of a member overwhich a sheet of threads held by said clamps may extend, andmeans'gforlaterally moving said member to place tension upon the threads.

4. The combination, with two thread clamps, of means arranged to bemoved against the sheet of threads extending between said clamps, forlacing tension u on said. sheet and means or moving the rst mentionedmeans against the sheet of threads. .-5. The combination, with twothread clamps, of .a bar arranged to .be ressed against the sheet ofthreads extending between said clamps, for placing tension thereon andmeans for ressing said bar against the sheet of threa s.

6. The combination, with two stationary warp clamps adapted to hold asheet of clined teeth, and means for sliding said open ating bar.

8. A warp carriage having stationary warp clamps at opposite sidesthereof adapted to hold a sheet of threads against movement, and meansfor lacin tension upon a sheet of threads held y' sai clamps.

9. A warp carriage having stationary warp clamps at opposite s desthereof adapted to hold asheet of threads against movement; and meansadjacent to'one of said clamps for lacing tension upon a sheet ofthreads held y said clamps.

10. A warp carriage having stationary warp clamps at opposite sidesthereof adapted to hold a sheet of threads against movement, and meansbelow and ad acent to one of said clam s for' placin tension upon asheet of three s held y sai clamps.

11. A warp carriage having war clamps at opposite sides thereof, a. memer supported below and adjacent to one of said clamps, and means fortpressin said member against the sheet 0 three. extending between saidclamps for placing tension upon the threads.

12. A warp clamp comprising a stationary member having a rib thereon, amovable clamp member having a rib thereon, an insertion bar havingyielding portions adapted to be placed between said ribs, and means formoving said movable clamp member..

13. A Warp clamp com risingastationary member having a rib t ereon, amovable member having a rib thereon, inclined teeth on the rear side ofsaid movable member, an operating bar having inclined teeth adapted toco-act with the inclined teeth on said movable member, means for movingsaid operating member, and threadinsertin means.

' 14. T e combination with means for holding one end of a sheet ofthreads, of a clamp comprising a channeled member having alongitntiimilfipartition therein, sheet-clamp- I si e of said partition,and sheet-tensioning in means in said channeled'inember at one i meansin said channeled member at the other C. E. Bnmon, LOUISE A. Comm.

